Effect of the GICs on magnetic saturation of asymmetric three-phase transformer
Effect of the GICs on magnetic saturation of asymmetric three-phase transformer
复制标题
GIC对不对称三相变压器磁饱和的影响
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
O. Touhami
中科院分区：
文献类型：
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作者：
F. Aboura;O. Touhami
地磁感应电流研究中最常用的模型忽略了磁滞现象。针对这一点，作者提出了一种将迟滞现象整合到考虑电流作为输入量的GIC影响的有限元模型（2D-FEM）中的方法。这些电流是由作者建立的动态电磁模型得到的，并与实验结果进行了比较。这是首次在带负荷三相变压器中出现这种现象。他们还提供了与其他论文相关的其他实际响应，其中他们研究了大多数变压器有载运行时空载不对称三相变压器的不平衡GIC偏置。
The most commonly used models in geomagnetic-induced currents (GICs) studies neglect the hysteresis phenomenon. In relation to this, the authors present an approach to integrate the hysteresis phenomenon to the finite-element model (2D-FEM) for the effects of the GIC which considers the current, as an input quantity. These currents are obtained by a dynamic electromagnetic model that the authors developed, and are compared with the results obtained by experimentation. This is the first time that this phenomenon has been shown in three-phase transformers with load. They also provide other practical responses in relation to other papers in which their studies concern the imbalance GIC bias on the asymmetric three-phase transformers with no-load while the majority of the transformers operate on load.